3427909217 has 4 divisors (see below), whose sum is σ = 3507628080. Its totient is φ = 3348190356.

The previous prime is 3427909207. The next prime is 3427909231. The reversal of 3427909217 is 7129097243.

3427909217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 3427909217 - 2¹⁰ = 3427908193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3427909207) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39859367 + ... + 39859452.

It is an arithmetic number, because the mean of its divisors is an integer number (876907020).

Almost surely, 2^3427909217 is an apocalyptic number.

It is an amenable number.

3427909217 is a deficient number, since it is larger than the sum of its proper divisors (79718863).

3427909217 is an equidigital number, since it uses as much as digits as its factorization.

3427909217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79718862.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 3427909217 is about 58548.3493960334. The cubic root of 3427909217 is about 1507.7977952008.

The spelling of 3427909217 in words is "three billion, four hundred twenty-seven million, nine hundred nine thousand, two hundred seventeen".